n-t-Butyldiethanolamine
CAS 2160-93-2
EC 218-480-7
Formula C8H19NO2
MW 161.24 g/mol
Amines Coatings, Adhesives, Sealants & ElastomersWater TreatmentLubricants & Metalworking Corrosion InhibitionpH Regulation & BufferingSolvent & Carrier
Description
N-tert-Butyldiethanolamine (CAS 2160-93-2, EC 218-480-7), also referenced as TBTDEA and under trade designations such as TIMTEC-BB SBB007657, is a tertiary alkanolamine combining a tert-butyl group with two hydroxyethyl arms. It carries no assigned E-code and is classified under HS code 2922.19.9690.
In waterborne coatings and metalworking fluids, N-tert-Butyldiethanolamine functions as a pH buffer and corrosion inhibitor, neutralising acidic species and forming protective complexes on metal surfaces. In adhesive and sealant formulations it acts as a reactive carrier, improving resin compatibility and extending open time through controlled amine basicity.
The compound is supplied as a solid and is subject to REACH registration requirements for EU procurement. Buyers should confirm purity grade and packaging format directly with the supplier, as specifications vary by intended application in water treatment, lubricants, or coating systems.
In waterborne coatings and metalworking fluids, N-tert-Butyldiethanolamine functions as a pH buffer and corrosion inhibitor, neutralising acidic species and forming protective complexes on metal surfaces. In adhesive and sealant formulations it acts as a reactive carrier, improving resin compatibility and extending open time through controlled amine basicity.
The compound is supplied as a solid and is subject to REACH registration requirements for EU procurement. Buyers should confirm purity grade and packaging format directly with the supplier, as specifications vary by intended application in water treatment, lubricants, or coating systems.
Physical Properties
| Melting Point | 189 °C |
| Boiling Point | 136-139 °C @ Press: 12 Torr |
| Density | 0.983 g/mL at 25 °C(lit.) |
| Flash Point | >230 °F |
| Color | White to Yellow to Orange |
| Form | Solid |
| Water Solubility | Completely soluble in water |
| Vapor Pressure | 0.2-0.36Pa at 20-25℃ |
| Refractive Index | n 20/D 1.4666(lit.) |
| Log P | -1.6-0.1 at 20℃ and pH7-11 |
Safety & Handling (Learn More)
Danger GHS05
H
H314H318
P
P260P264P280P316P317P321P363P405P501P264+P265P304+P340P301+P330+P331P302+P361+P354P305+P354+P338
Trade & Regulatory
| HS Code | 2922.19.9690 |
| UN Number | 3259 |
| ADR Class | 8 |
| Packing Group | III |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| WGK (Germany) | 2 |
Other Names
2-[tert-butyl(2-hydroxyethyl)amino]ethanoltert-ButyldiethanolamineTIMTEC-BB SBB007657N-tert-ButyliminodiethanolN-TERT-BUTYLDIETHANOLAMINE2,2-(TERT-BUTYLIMINO)DIETHANOL2,2'-(TERT-BUTYLIMINO)DIETHANOL
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